[Mesa-dev] [PATCH 1/7] i965: Move texture buffer dispatch into single location

Francisco Jerez currojerez at riseup.net
Thu May 7 07:15:35 PDT 2015


From: Topi Pohjolainen <topi.pohjolainen at intel.com>

All generations do the same exact dispatch and it could be
therefore done in the hardware independent stage.

Reviewed-by: Matt Turner <mattst88 at gmail.com>
Reviewed-by: Kenneth Graunke <kenneth at whitecape.org>
Signed-off-by: Topi Pohjolainen <topi.pohjolainen at intel.com>
[ Francisco Jerez: Non-trivial rebase. ]
Reviewed-by: Francisco Jerez <currojerez at riseup.net>
---
 src/mesa/drivers/dri/i965/brw_context.h           |  3 -
 src/mesa/drivers/dri/i965/brw_wm_surface_state.c  | 31 ++++++----
 src/mesa/drivers/dri/i965/gen7_wm_surface_state.c | 69 +++++++++++------------
 src/mesa/drivers/dri/i965/gen8_surface_state.c    | 67 ++++++++++------------
 4 files changed, 83 insertions(+), 87 deletions(-)

diff --git a/src/mesa/drivers/dri/i965/brw_context.h b/src/mesa/drivers/dri/i965/brw_context.h
index 2fcdcfa..a6282f4 100644
--- a/src/mesa/drivers/dri/i965/brw_context.h
+++ b/src/mesa/drivers/dri/i965/brw_context.h
@@ -1698,9 +1698,6 @@ void brw_create_constant_surface(struct brw_context *brw,
                                  uint32_t size,
                                  uint32_t *out_offset,
                                  bool dword_pitch);
-void brw_update_buffer_texture_surface(struct gl_context *ctx,
-                                       unsigned unit,
-                                       uint32_t *surf_offset);
 void
 brw_update_sol_surface(struct brw_context *brw,
                        struct gl_buffer_object *buffer_obj,
diff --git a/src/mesa/drivers/dri/i965/brw_wm_surface_state.c b/src/mesa/drivers/dri/i965/brw_wm_surface_state.c
index 160dd2f..2b8040c 100644
--- a/src/mesa/drivers/dri/i965/brw_wm_surface_state.c
+++ b/src/mesa/drivers/dri/i965/brw_wm_surface_state.c
@@ -274,10 +274,10 @@ gen4_emit_buffer_surface_state(struct brw_context *brw,
    }
 }
 
-void
-brw_update_buffer_texture_surface(struct gl_context *ctx,
-                                  unsigned unit,
-                                  uint32_t *surf_offset)
+static void
+update_buffer_texture_surface(struct gl_context *ctx,
+                              unsigned unit,
+                              uint32_t *surf_offset)
 {
    struct brw_context *brw = brw_context(ctx);
    struct gl_texture_object *tObj = ctx->Texture.Unit[unit]._Current;
@@ -320,12 +320,6 @@ brw_update_texture_surface(struct gl_context *ctx,
    struct gl_sampler_object *sampler = _mesa_get_samplerobj(ctx, unit);
    uint32_t *surf;
 
-   /* BRW_NEW_TEXTURE_BUFFER */
-   if (tObj->Target == GL_TEXTURE_BUFFER) {
-      brw_update_buffer_texture_surface(ctx, unit, surf_offset);
-      return;
-   }
-
    surf = brw_state_batch(brw, AUB_TRACE_SURFACE_STATE,
 			  6 * 4, 32, surf_offset);
 
@@ -795,6 +789,21 @@ const struct brw_tracked_state gen6_renderbuffer_surfaces = {
    .emit = update_renderbuffer_surfaces,
 };
 
+static void
+update_texture_surface(struct gl_context *ctx,
+                       unsigned unit,
+                       uint32_t *surf_offset,
+                       bool for_gather)
+{
+   struct brw_context *brw = brw_context(ctx);
+   struct gl_texture_object *obj = ctx->Texture.Unit[unit]._Current;
+
+   if (obj->Target == GL_TEXTURE_BUFFER) {
+      update_buffer_texture_surface(ctx, unit, surf_offset);
+   } else {
+      brw->vtbl.update_texture_surface(ctx, unit, surf_offset, for_gather);
+   }
+}
 
 static void
 update_stage_texture_surfaces(struct brw_context *brw,
@@ -824,7 +833,7 @@ update_stage_texture_surfaces(struct brw_context *brw,
 
          /* _NEW_TEXTURE */
          if (ctx->Texture.Unit[unit]._Current) {
-            brw->vtbl.update_texture_surface(ctx, unit, surf_offset + s, for_gather);
+            update_texture_surface(ctx, unit, surf_offset + s, for_gather);
          }
       }
    }
diff --git a/src/mesa/drivers/dri/i965/gen7_wm_surface_state.c b/src/mesa/drivers/dri/i965/gen7_wm_surface_state.c
index 15ab2b0..098b5c8 100644
--- a/src/mesa/drivers/dri/i965/gen7_wm_surface_state.c
+++ b/src/mesa/drivers/dri/i965/gen7_wm_surface_state.c
@@ -356,43 +356,38 @@ gen7_update_texture_surface(struct gl_context *ctx,
    struct brw_context *brw = brw_context(ctx);
    struct gl_texture_object *obj = ctx->Texture.Unit[unit]._Current;
 
-   if (obj->Target == GL_TEXTURE_BUFFER) {
-      brw_update_buffer_texture_surface(ctx, unit, surf_offset);
-
-   } else {
-      struct intel_texture_object *intel_obj = intel_texture_object(obj);
-      struct intel_mipmap_tree *mt = intel_obj->mt;
-      struct gl_sampler_object *sampler = _mesa_get_samplerobj(ctx, unit);
-      /* If this is a view with restricted NumLayers, then our effective depth
-       * is not just the miptree depth.
-       */
-      const unsigned depth = (obj->Immutable && obj->Target != GL_TEXTURE_3D ?
-                              obj->NumLayers : mt->logical_depth0);
-
-      /* Handling GL_ALPHA as a surface format override breaks 1.30+ style
-       * texturing functions that return a float, as our code generation always
-       * selects the .x channel (which would always be 0).
-       */
-      struct gl_texture_image *firstImage = obj->Image[0][obj->BaseLevel];
-      const bool alpha_depth = obj->DepthMode == GL_ALPHA &&
-         (firstImage->_BaseFormat == GL_DEPTH_COMPONENT ||
-          firstImage->_BaseFormat == GL_DEPTH_STENCIL);
-      const unsigned swizzle = (unlikely(alpha_depth) ? SWIZZLE_XYZW :
-                                brw_get_texture_swizzle(&brw->ctx, obj));
-
-      unsigned format = translate_tex_format(
-         brw, intel_obj->_Format, sampler->sRGBDecode);
-
-      if (for_gather && format == BRW_SURFACEFORMAT_R32G32_FLOAT)
-         format = BRW_SURFACEFORMAT_R32G32_FLOAT_LD;
-
-      gen7_emit_texture_surface_state(brw, mt, obj->Target,
-                                      obj->MinLayer, obj->MinLayer + depth,
-                                      obj->MinLevel + obj->BaseLevel,
-                                      obj->MinLevel + intel_obj->_MaxLevel + 1,
-                                      format, swizzle,
-                                      surf_offset, false, for_gather);
-   }
+   struct intel_texture_object *intel_obj = intel_texture_object(obj);
+   struct intel_mipmap_tree *mt = intel_obj->mt;
+   struct gl_sampler_object *sampler = _mesa_get_samplerobj(ctx, unit);
+   /* If this is a view with restricted NumLayers, then our effective depth
+    * is not just the miptree depth.
+    */
+   const unsigned depth = (obj->Immutable && obj->Target != GL_TEXTURE_3D ?
+                           obj->NumLayers : mt->logical_depth0);
+
+   /* Handling GL_ALPHA as a surface format override breaks 1.30+ style
+    * texturing functions that return a float, as our code generation always
+    * selects the .x channel (which would always be 0).
+    */
+   struct gl_texture_image *firstImage = obj->Image[0][obj->BaseLevel];
+   const bool alpha_depth = obj->DepthMode == GL_ALPHA &&
+      (firstImage->_BaseFormat == GL_DEPTH_COMPONENT ||
+       firstImage->_BaseFormat == GL_DEPTH_STENCIL);
+   const unsigned swizzle = (unlikely(alpha_depth) ? SWIZZLE_XYZW :
+                             brw_get_texture_swizzle(&brw->ctx, obj));
+
+   unsigned format = translate_tex_format(
+      brw, intel_obj->_Format, sampler->sRGBDecode);
+
+   if (for_gather && format == BRW_SURFACEFORMAT_R32G32_FLOAT)
+      format = BRW_SURFACEFORMAT_R32G32_FLOAT_LD;
+
+   gen7_emit_texture_surface_state(brw, mt, obj->Target,
+                                   obj->MinLayer, obj->MinLayer + depth,
+                                   obj->MinLevel + obj->BaseLevel,
+                                   obj->MinLevel + intel_obj->_MaxLevel + 1,
+                                   format, swizzle,
+                                   surf_offset, false, for_gather);
 }
 
 /**
diff --git a/src/mesa/drivers/dri/i965/gen8_surface_state.c b/src/mesa/drivers/dri/i965/gen8_surface_state.c
index d0c2d80..2f9b98e 100644
--- a/src/mesa/drivers/dri/i965/gen8_surface_state.c
+++ b/src/mesa/drivers/dri/i965/gen8_surface_state.c
@@ -255,44 +255,39 @@ gen8_update_texture_surface(struct gl_context *ctx,
    struct brw_context *brw = brw_context(ctx);
    struct gl_texture_object *obj = ctx->Texture.Unit[unit]._Current;
 
-   if (obj->Target == GL_TEXTURE_BUFFER) {
-      brw_update_buffer_texture_surface(ctx, unit, surf_offset);
+   struct gl_texture_image *firstImage = obj->Image[0][obj->BaseLevel];
+   struct intel_texture_object *intel_obj = intel_texture_object(obj);
+   struct intel_mipmap_tree *mt = intel_obj->mt;
+   struct gl_sampler_object *sampler = _mesa_get_samplerobj(ctx, unit);
+   /* If this is a view with restricted NumLayers, then our effective depth
+    * is not just the miptree depth.
+    */
+   const unsigned depth = (obj->Immutable && obj->Target != GL_TEXTURE_3D ?
+                           obj->NumLayers : mt->logical_depth0);
 
-   } else {
-      struct gl_texture_image *firstImage = obj->Image[0][obj->BaseLevel];
-      struct intel_texture_object *intel_obj = intel_texture_object(obj);
-      struct intel_mipmap_tree *mt = intel_obj->mt;
-      struct gl_sampler_object *sampler = _mesa_get_samplerobj(ctx, unit);
-      /* If this is a view with restricted NumLayers, then our effective depth
-       * is not just the miptree depth.
-       */
-      const unsigned depth = (obj->Immutable && obj->Target != GL_TEXTURE_3D ?
-                              obj->NumLayers : mt->logical_depth0);
-
-      /* Handling GL_ALPHA as a surface format override breaks 1.30+ style
-       * texturing functions that return a float, as our code generation always
-       * selects the .x channel (which would always be 0).
-       */
-      const bool alpha_depth = obj->DepthMode == GL_ALPHA &&
-         (firstImage->_BaseFormat == GL_DEPTH_COMPONENT ||
-          firstImage->_BaseFormat == GL_DEPTH_STENCIL);
-      const unsigned swizzle = (unlikely(alpha_depth) ? SWIZZLE_XYZW :
-                                brw_get_texture_swizzle(&brw->ctx, obj));
-
-      unsigned format = translate_tex_format(brw, intel_obj->_Format,
-                                             sampler->sRGBDecode);
-      if (obj->StencilSampling && firstImage->_BaseFormat == GL_DEPTH_STENCIL) {
-         mt = mt->stencil_mt;
-         format = BRW_SURFACEFORMAT_R8_UINT;
-      }
-
-      gen8_emit_texture_surface_state(brw, mt, obj->Target,
-                                      obj->MinLayer, obj->MinLayer + depth,
-                                      obj->MinLevel + obj->BaseLevel,
-                                      obj->MinLevel + intel_obj->_MaxLevel + 1,
-                                      format, swizzle, surf_offset,
-                                      false, for_gather);
+   /* Handling GL_ALPHA as a surface format override breaks 1.30+ style
+    * texturing functions that return a float, as our code generation always
+    * selects the .x channel (which would always be 0).
+    */
+   const bool alpha_depth = obj->DepthMode == GL_ALPHA &&
+      (firstImage->_BaseFormat == GL_DEPTH_COMPONENT ||
+       firstImage->_BaseFormat == GL_DEPTH_STENCIL);
+   const unsigned swizzle = (unlikely(alpha_depth) ? SWIZZLE_XYZW :
+                             brw_get_texture_swizzle(&brw->ctx, obj));
+
+   unsigned format = translate_tex_format(brw, intel_obj->_Format,
+                                          sampler->sRGBDecode);
+   if (obj->StencilSampling && firstImage->_BaseFormat == GL_DEPTH_STENCIL) {
+      mt = mt->stencil_mt;
+      format = BRW_SURFACEFORMAT_R8_UINT;
    }
+
+   gen8_emit_texture_surface_state(brw, mt, obj->Target,
+                                   obj->MinLayer, obj->MinLayer + depth,
+                                   obj->MinLevel + obj->BaseLevel,
+                                   obj->MinLevel + intel_obj->_MaxLevel + 1,
+                                   format, swizzle, surf_offset,
+                                   false, for_gather);
 }
 
 /**
-- 
2.3.5



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